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291 lines
11 KiB
C++
291 lines
11 KiB
C++
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/fermion/MobiusEOFAFermionssp.cc
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Copyright (C) 2017
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
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Author: paboyle <paboyle@ph.ed.ac.uk>
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Author: David Murphy <dmurphy@phys.columbia.edu>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#include <Grid/qcd/action/fermion/FermionCore.h>
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#include <Grid/qcd/action/fermion/MobiusEOFAFermion.h>
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namespace Grid {
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namespace QCD {
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// FIXME -- make a version of these routines with site loop outermost for cache reuse.
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// Pminus fowards
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// Pplus backwards
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template<class Impl>
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void MobiusEOFAFermion<Impl>::M5D(const FermionField& psi, const FermionField& phi,
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FermionField& chi, std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper)
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{
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Coeff_t one(1.0);
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int Ls = this->Ls;
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for(int s=0; s<Ls; s++){
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if(s==0) {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pplus (chi, one, chi, lower[s], psi, s, Ls-1);
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} else if (s==(Ls-1)) {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, 0);
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axpby_ssp_pplus (chi, one, chi, lower[s], psi, s, s-1);
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} else {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pplus(chi, one, chi, lower[s], psi, s, s-1);
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}
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::M5D_shift(const FermionField& psi, const FermionField& phi,
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FermionField& chi, std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper,
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std::vector<Coeff_t>& shift_coeffs)
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{
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Coeff_t one(1.0);
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int Ls = this->Ls;
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for(int s=0; s<Ls; s++){
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if(s==0) {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pplus (chi, one, chi, lower[s], psi, s, Ls-1);
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} else if (s==(Ls-1)) {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, 0);
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axpby_ssp_pplus (chi, one, chi, lower[s], psi, s, s-1);
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} else {
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axpby_ssp_pminus(chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pplus(chi, one, chi, lower[s], psi, s, s-1);
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}
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, shift_coeffs[s], psi, s, Ls-1); }
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else{ axpby_ssp_pminus(chi, one, chi, shift_coeffs[s], psi, s, 0); }
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::M5Ddag(const FermionField& psi, const FermionField& phi,
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FermionField& chi, std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper)
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{
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Coeff_t one(1.0);
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int Ls = this->Ls;
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for(int s=0; s<Ls; s++){
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if(s==0) {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, Ls-1);
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} else if (s==(Ls-1)) {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, 0);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, s-1);
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} else {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, s-1);
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}
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::M5Ddag_shift(const FermionField& psi, const FermionField& phi,
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FermionField& chi, std::vector<Coeff_t>& lower, std::vector<Coeff_t>& diag, std::vector<Coeff_t>& upper,
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std::vector<Coeff_t>& shift_coeffs)
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{
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Coeff_t one(1.0);
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int Ls = this->Ls;
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for(int s=0; s<Ls; s++){
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if(s==0) {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, Ls-1);
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} else if (s==(Ls-1)) {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, 0);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, s-1);
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} else {
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axpby_ssp_pplus (chi, diag[s], phi, upper[s], psi, s, s+1);
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axpby_ssp_pminus(chi, one, chi, lower[s], psi, s, s-1);
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}
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, shift_coeffs[s], psi, Ls-1, s); }
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else{ axpby_ssp_pminus(chi, one, chi, shift_coeffs[s], psi, 0, s); }
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::MooeeInv(const FermionField& psi, FermionField& chi)
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{
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if(this->shift != 0.0){ MooeeInv_shift(psi,chi); return; }
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Coeff_t one(1.0);
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Coeff_t czero(0.0);
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chi.checkerboard = psi.checkerboard;
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int Ls = this->Ls;
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// Apply (L^{\prime})^{-1}
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axpby_ssp(chi, one, psi, czero, psi, 0, 0); // chi[0]=psi[0]
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for(int s=1; s<Ls; s++){
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axpby_ssp_pplus(chi, one, psi, -this->lee[s-1], chi, s, s-1);// recursion Psi[s] -lee P_+ chi[s-1]
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}
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// L_m^{-1}
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for(int s=0; s<Ls-1; s++){ // Chi[ee] = 1 - sum[s<Ls-1] -leem[s]P_- chi
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axpby_ssp_pminus(chi, one, chi, -this->leem[s], chi, Ls-1, s);
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}
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// U_m^{-1} D^{-1}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pplus(chi, one/this->dee[s], chi, -this->ueem[s]/this->dee[Ls-1], chi, s, Ls-1);
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}
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axpby_ssp(chi, one/this->dee[Ls-1], chi, czero, chi, Ls-1, Ls-1);
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// Apply U^{-1}
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for(int s=Ls-2; s>=0; s--){
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axpby_ssp_pminus(chi, one, chi, -this->uee[s], chi, s, s+1); // chi[Ls]
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::MooeeInv_shift(const FermionField& psi, FermionField& chi)
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{
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Coeff_t one(1.0);
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Coeff_t czero(0.0);
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chi.checkerboard = psi.checkerboard;
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int Ls = this->Ls;
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FermionField tmp(psi._grid);
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// Apply (L^{\prime})^{-1}
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axpby_ssp(chi, one, psi, czero, psi, 0, 0); // chi[0]=psi[0]
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axpby_ssp(tmp, czero, tmp, this->MooeeInv_shift_lc[0], psi, 0, 0);
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for(int s=1; s<Ls; s++){
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axpby_ssp_pplus(chi, one, psi, -this->lee[s-1], chi, s, s-1);// recursion Psi[s] -lee P_+ chi[s-1]
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axpby_ssp(tmp, one, tmp, this->MooeeInv_shift_lc[s], psi, 0, s);
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}
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// L_m^{-1}
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for(int s=0; s<Ls-1; s++){ // Chi[ee] = 1 - sum[s<Ls-1] -leem[s]P_- chi
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axpby_ssp_pminus(chi, one, chi, -this->leem[s], chi, Ls-1, s);
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}
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// U_m^{-1} D^{-1}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pplus(chi, one/this->dee[s], chi, -this->ueem[s]/this->dee[Ls-1], chi, s, Ls-1);
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}
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axpby_ssp(chi, one/this->dee[Ls-1], chi, czero, chi, Ls-1, Ls-1);
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// Apply U^{-1} and add shift term
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, this->MooeeInv_shift_norm[Ls-1], tmp, Ls-1, 0); }
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else{ axpby_ssp_pminus(chi, one, chi, this->MooeeInv_shift_norm[Ls-1], tmp, Ls-1, 0); }
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for(int s=Ls-2; s>=0; s--){
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axpby_ssp_pminus(chi, one, chi, -this->uee[s], chi, s, s+1); // chi[Ls]
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, this->MooeeInv_shift_norm[s], tmp, s, 0); }
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else{ axpby_ssp_pminus(chi, one, chi, this->MooeeInv_shift_norm[s], tmp, s, 0); }
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::MooeeInvDag(const FermionField& psi, FermionField& chi)
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{
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if(this->shift != 0.0){ MooeeInvDag_shift(psi,chi); return; }
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Coeff_t one(1.0);
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Coeff_t czero(0.0);
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chi.checkerboard = psi.checkerboard;
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int Ls = this->Ls;
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// Apply (U^{\prime})^{-dagger}
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axpby_ssp(chi, one, psi, czero, psi, 0, 0); // chi[0]=psi[0]
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for(int s=1; s<Ls; s++){
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axpby_ssp_pminus(chi, one, psi, -conjugate(this->uee[s-1]), chi, s, s-1);
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}
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// U_m^{-\dagger}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pplus(chi, one, chi, -conjugate(this->ueem[s]), chi, Ls-1, s);
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}
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// L_m^{-\dagger} D^{-dagger}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pminus(chi, one/conjugate(this->dee[s]), chi, -conjugate(this->leem[s]/this->dee[Ls-1]), chi, s, Ls-1);
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}
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axpby_ssp(chi, one/conjugate(this->dee[Ls-1]), chi, czero, chi, Ls-1, Ls-1);
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// Apply L^{-dagger}
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for(int s=Ls-2; s>=0; s--){
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axpby_ssp_pplus(chi, one, chi, -conjugate(this->lee[s]), chi, s, s+1); // chi[Ls]
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}
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}
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template<class Impl>
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void MobiusEOFAFermion<Impl>::MooeeInvDag_shift(const FermionField& psi, FermionField& chi)
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{
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Coeff_t one(1.0);
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Coeff_t czero(0.0);
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chi.checkerboard = psi.checkerboard;
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int Ls = this->Ls;
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FermionField tmp(psi._grid);
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// Apply (U^{\prime})^{-dagger} and accumulate (MooeeInvDag_shift_lc)_{j} \psi_{j} in tmp[0]
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axpby_ssp(chi, one, psi, czero, psi, 0, 0); // chi[0]=psi[0]
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axpby_ssp(tmp, czero, tmp, this->MooeeInvDag_shift_lc[0], psi, 0, 0);
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for(int s=1; s<Ls; s++){
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axpby_ssp_pminus(chi, one, psi, -conjugate(this->uee[s-1]), chi, s, s-1);
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axpby_ssp(tmp, one, tmp, this->MooeeInvDag_shift_lc[s], psi, 0, s);
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}
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// U_m^{-\dagger}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pplus(chi, one, chi, -conjugate(this->ueem[s]), chi, Ls-1, s);
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}
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// L_m^{-\dagger} D^{-dagger}
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for(int s=0; s<Ls-1; s++){
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axpby_ssp_pminus(chi, one/conjugate(this->dee[s]), chi, -conjugate(this->leem[s]/this->dee[Ls-1]), chi, s, Ls-1);
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}
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axpby_ssp(chi, one/conjugate(this->dee[Ls-1]), chi, czero, chi, Ls-1, Ls-1);
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// Apply L^{-dagger} and add shift
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, this->MooeeInvDag_shift_norm[Ls-1], tmp, Ls-1, 0); }
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else{ axpby_ssp_pminus(chi, one, chi, this->MooeeInvDag_shift_norm[Ls-1], tmp, Ls-1, 0); }
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for(int s=Ls-2; s>=0; s--){
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axpby_ssp_pplus(chi, one, chi, -conjugate(this->lee[s]), chi, s, s+1); // chi[Ls]
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if(this->pm == 1){ axpby_ssp_pplus(chi, one, chi, this->MooeeInvDag_shift_norm[s], tmp, s, 0); }
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else{ axpby_ssp_pminus(chi, one, chi, this->MooeeInvDag_shift_norm[s], tmp, s, 0); }
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}
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}
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#ifdef MOBIUS_EOFA_DPERP_LINALG
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INSTANTIATE_DPERP_MOBIUS_EOFA(WilsonImplF);
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INSTANTIATE_DPERP_MOBIUS_EOFA(WilsonImplD);
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INSTANTIATE_DPERP_MOBIUS_EOFA(GparityWilsonImplF);
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||
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INSTANTIATE_DPERP_MOBIUS_EOFA(GparityWilsonImplD);
|
||
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INSTANTIATE_DPERP_MOBIUS_EOFA(ZWilsonImplF);
|
||
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INSTANTIATE_DPERP_MOBIUS_EOFA(ZWilsonImplD);
|
||
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|
|
||
|
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INSTANTIATE_DPERP_MOBIUS_EOFA(WilsonImplFH);
|
||
|
|
INSTANTIATE_DPERP_MOBIUS_EOFA(WilsonImplDF);
|
||
|
|
INSTANTIATE_DPERP_MOBIUS_EOFA(GparityWilsonImplFH);
|
||
|
|
INSTANTIATE_DPERP_MOBIUS_EOFA(GparityWilsonImplDF);
|
||
|
|
INSTANTIATE_DPERP_MOBIUS_EOFA(ZWilsonImplFH);
|
||
|
|
INSTANTIATE_DPERP_MOBIUS_EOFA(ZWilsonImplDF);
|
||
|
|
|
||
|
|
#endif
|
||
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|
|
||
|
|
}}
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